With the role of Medicaid as a purchaser of substance use treatment services greatly expanding as a result of national health reform, substance use providers will need to become familiar with the Medicaid program and the opportunities that exist for providing Medicaid funded substance use treatment services. This brief summarizes various options for providers of substance use services interested in establishing connections with the Medicaid program, including key questions to consider for providers interested in delivering Medicaid-funded services. (November 2012)